원문정보
초록
영어
The single-channel wireless sensor networks (WSNs) exists the problem of low efficiency of monitoring data transmission, however the multi-channel WSNs exists the problem of communication collision caused by the sensor node’s wireless channel competition. The paper at first introduces the causes of the above problems and selects a reasonable wireless channel resources allocation method of the multi-channel WSNs. Then to solve these questions, the theory of compressive sensing and spectrum sensing are adopted to improve the existing multi-channel WSNs. Finally, a new sensor node of the multi-channel WSNs is designed based on the above improvement. By analyzing the monitoring data of the field test, the improved multi-channel WSNs could complete monitoring mission efficiently and accurately, meanwhile it reduced power consumption of the WSNs effectively.
목차
1. Introduction
2. Channel Resources Allocation Method Design of Multi-ChannelWireless Sensor Networks
3. Algorithm Design of Improving Communication Efficiency andReducing Power Consumption in Multi-Channel WSNs
3.1. Compressive Sensing Algorithm of Monitor Signal
3.2. Spectrum Sensing Algorithm of Sensor Node
4. Design of the Sensor Node of the Multi-Channel WSNs
5. Field Testing and Testing Data Analysis of the Multi-Channel WSNs
6. Conclusion
Acknowledgements
References